Plane.



J. SMITH.

PLANE.

APPLICATION FILED 0012.9. 1913;

Patented June 30,1914.

COLUMBIA PLANOGRAPH Co.. WASHI NGTON, D. c.

WTNE SES .foEN- sivrrin, or PooL'EE, esonera.

rLAltE.

Specification of Letters atent.

Patented June 350, i914.

' inl'caton filed October 9, 1913. -Serial No. 794,225.

To all @71cm may concern: u j.

Be it known that LJOHN SMITH, a citizen of the `United States, and a, resident of Pooler, in thecounty of ,Chatham andj State of Georgia, have invented a'new and 1mproved Plane, of which the lfollo'v'ving is a full, clear, andeiiact description. l j y This invention relates to woodworking tools and has particular reference to the construction of carpenters planes whereby a tool lof this cha'racterinay be adjusted or modified in size and thereby made to Aserve as a substitute 'for `several different si7`es of planes commonly required by a carpenter.

The primary object of the invention, therefore, is to provide "a tool oftheA class indicated which is adaptedl by 4the jrovis'io'n of one or more lextensions Ito, taleut' veplace of a setof planes including a s'moc'thinbjor block eplane, a jack plane, a fore-plane and a jointer. j j

The ,foregoing4 and other objects` of the invention will hereinafter be more fully ,described andvclaimed and illustrated in the drawings forming a part ,of this specification in which likeA characters ofreference indicate correspondiiig parts in all the views, and in which- Figure 1 is a longitudinal section of the invention arranged asa 'ointer'g Fig. 2 is a plan view of the same; and Fig.y 3 is a plan view of the rear extension detached.

The -several 'parts yof the device may-loeA made of any suitable materials, andthe rela` tive sizes and proportions, as well as the general design of the mechanism, may be varied to a considerable extent without departing from the spirit of the invention hereinafter more fully set forth and specically claimed.

A device made in accordance with this invention comprises a head or body 10 having a throat or mouth 11 for the accommodation of the usual bit and frog (not shown), and usually provided also with a handle 12 and a knob 13, especially when made of metal. As is usual in the construction of metal planes there are provided vertical side flanges 14 extending from one end to the other of the body 10 and between which the supporting means 15 for the bit are arranged.

The body 10 to which the handle and knob are connected permanently constitutes what is commonly termed a block or smoothing plane, and in order to constitute such implement into ack planel an extension v16 is added; tothefront end thereof, ASaid, en tensionl comprises a flat portion constituting an extensiinof thebase of the body lOjand isrprovided on its lateral edgesy'vi'th reinforcei'nent ribs 1T eachhavi'ng an arin 18 extending. rearwardly in close' engagement with lthe inner surface ofthe adjacent flange 1 4. vSaid arms `spanft'he joint betweenythe mai'n base and Ith'efextension and adjacent their rear endsO l kprovide niea'ns to temporarily lool; the extension to the frontend thebody 10. shown herein said lockmg means comprisesa `pair of studs 19V ei,- tend-ing inwardly from the inn'cr surfaces of the Iflanges 14 just above the rear ends of thc arms 1S. Preferably said arms are adapted tos'lip directly beneath and in close contact with said studs, as shown in Fig. 1. I also provide spring` catches 2,() whiclrenga'ge over the st'udsr19 and servel to 'prevent longitudinal displacement ofy 'the ve'irten-sior'1v 16. Y The studs serve, therefore', directly toprevent the rearl ends of the armsfroin tilting 4up andv through Lthe catchers 2O they prevent longitudinal movement, as `above set forth. The principal strain, however, upon the eXtension would' tend tobenpward or 'ina directionwto cause the front endof the eitension 'to belel'eyatedabove the plane yof the bottorn of theiinfplement. VThistendency, however, is 4resisted effectively by 'means `of a lip 21 extending into a rabbet 21 formed Ya"c `i"'os`s the entlof the/lower surface of the Elb'odl'y 10. Said lip and rabbet are provided preferably with right angles and hence will not interfere with the aforesaid slidable movement of the extension when putting it in place. Lateral distortion or twisting of the parts is prevented by the fact that the arms have close engagement with the inner surfaces of the flanges 14 and also by the fact of the shoulders 22 coperating with the ends of said flanges.

In order to constitute the implement into a j ointer I provide a rearward extension 16 preferably longer than the extension 16 but of the same general character, the same including a pair of arms 18 each having a spring catch 20 coperating with a stud 19 in a manner similar to that above described. The ribs 17 of this form of the invention reinforce and stiften this member. This rearward extension 16 also is provided with a lip or lips 21a extending forwardly on op pose lSides of the base of the handle 12 into cooperation with the rabbet 21, as shown in Fig. l. The base of this extension is provided with a socket or notch 16 into which the base of the handle is snugly seated when the extension is shoved forwardly into place. Either of these extensions may be almost instantly attached or detached. The manner of detachmentI may consist in the holding of the body IO in one hand and with the other' hand spanning the handle or knob and causing two of the lingers of such hand to lift upon the free ends 20 of the catches. Such handle or knob constitutes therefore a fulcrum to assist in such lifting movement, and the pressure between the hand and the ends of the fingers causes sufficient outward or rearwarcfl movement of the extension to unlock the catches from the studs. rI`he two parts, then, may be pulled apart directly without resistance. The assembling movement will be readily understood from what has been said above, and requires but a simple shove of the extension directly into its place, the ends 20 of the catches causing the catches to ride automatically over and into engagement with the studs.

Having thus described my invention, I claim as new and desire to secure by Letters Patentrl, In an implement of the class set forth. the combination of a main plane body hav ing a base and upwardly extending` side flanges, an extension for said body comprising a base adapted to aline with the body base, said extension also including a pair of arms extending along the body base adjacent the inner surfaces of said flanges, a pair of studs secured to said iianges and extending toward each other in contact with the upper surfaces of said arms to prevent downward tilting of the extension, and

means engaging over said studs to prevent longitudinal displacement of the extension.

2. In a plane, the combination with a main body including a base and a pair of upwardly extending lateral flanges, of an extension for either end of said base, said extension comprising a base adapted to aline with the aforesaid base and also including a pair of arms extending along the top of the main base just within the flanges thereof, a pair of studs coperating directly with the upper surfaces of said arms, a pair of spring catches secured to the arms and adapted to snap automatically over said studs when the extension is shoved into place, and means cooperating with said arms to prevent the upward tilting of the extension.

3. In a plane, the combination of a main body including a base, vertical side flanges extending upwardly from the base, and a pair of studs extending inwardly from the inner faces of said side iianges in alinement with each other and spaced above the upper surface of said base, an extension for the main body including a base adapted to abut against the aforesaid body base, a pair of rigid arms extending from the extension and lying snugly between said studs and the main body base, and means on the arms eooperating with said arms and studs serving to prevent accidental removal of the extension from the base.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JOHN SMITH.

Vitnesses:

JOHN B. SMITH, E. CARMEL MURPHY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. C. 

